If the foot of the perpendicular from the origin to a straight line is at `(3,-4)` , then find the equation of the line.

Explanation

To find the equation of the line given that the foot of the perpendicular from the origin to the straight line is at the point (3, -4), we can follow these steps:

### Step 1: Identify the coordinates
The foot of the perpendicular from the origin (0, 0) to the line is given as the point (3, -4).

### Step 2: Calculate the slope of the perpendicular
The slope (M1) of the line segment from the origin (0, 0) to the point (3, -4) can be calculated using the formula:
\[
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